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comparison: gfx/thebes/gfxGdkNativeRenderer.h
gfx/thebes/gfxGdkNativeRenderer.h
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef GFXGDKNATIVERENDER_H_ | |
| 7 #define GFXGDKNATIVERENDER_H_ | |
| 8 | |
| 9 #include <gdk/gdk.h> | |
| 10 #include "nsSize.h" | |
| 11 #ifdef MOZ_X11 | |
| 12 #include "gfxXlibNativeRenderer.h" | |
| 13 #endif | |
| 14 | |
| 15 class gfxContext; | |
| 16 | |
| 17 /** | |
| 18 * This class lets us take code that draws into an GDK drawable and lets us | |
| 19 * use it to draw into any Thebes context. The user should subclass this class, | |
| 20 * override DrawWithGDK, and then call Draw(). The drawing will be subjected | |
| 21 * to all Thebes transformations, clipping etc. | |
| 22 */ | |
| 23 class gfxGdkNativeRenderer | |
| 24 #ifdef MOZ_X11 | |
| 25 : private gfxXlibNativeRenderer | |
| 26 #endif | |
| 27 { | |
| 28 public: | |
| 29 /** | |
| 30 * Perform the native drawing. | |
| 31 * @param offsetX draw at this offset into the given drawable | |
| 32 * @param offsetY draw at this offset into the given drawable | |
| 33 * @param clipRects an array of rects; clip to the union | |
| 34 * @param numClipRects the number of rects in the array, or zero if | |
| 35 * no clipping is required | |
| 36 */ | |
| 37 | |
| 38 #if (MOZ_WIDGET_GTK == 2) | |
| 39 virtual nsresult DrawWithGDK(GdkDrawable * drawable, gint offsetX, | |
| 40 gint offsetY, GdkRectangle * clipRects, uint32_t numClipRects) = 0; | |
| 41 #endif | |
| 42 | |
| 43 enum { | |
| 44 // If set, then Draw() is opaque, i.e., every pixel in the intersection | |
| 45 // of the clipRect and (offset.x,offset.y,bounds.width,bounds.height) | |
| 46 // will be set and there is no dependence on what the existing pixels | |
| 47 // in the drawable are set to. | |
| 48 DRAW_IS_OPAQUE = | |
| 49 #ifdef MOZ_X11 | |
| 50 gfxXlibNativeRenderer::DRAW_IS_OPAQUE | |
| 51 #else | |
| 52 0x1 | |
| 53 #endif | |
| 54 // If set, then numClipRects can be zero or one. | |
| 55 // If not set, then numClipRects will be zero. | |
| 56 , DRAW_SUPPORTS_CLIP_RECT = | |
| 57 #ifdef MOZ_X11 | |
| 58 gfxXlibNativeRenderer::DRAW_SUPPORTS_CLIP_RECT | |
| 59 #else | |
| 60 0x2 | |
| 61 #endif | |
| 62 }; | |
| 63 | |
| 64 /** | |
| 65 * @param flags see above | |
| 66 * @param bounds Draw()'s drawing is guaranteed to be restricted to | |
| 67 * the rectangle (offset.x,offset.y,bounds.width,bounds.height) | |
| 68 * @param dpy a display to use for the drawing if ctx doesn't have one | |
| 69 */ | |
| 70 #if (MOZ_WIDGET_GTK == 2) | |
| 71 void Draw(gfxContext* ctx, nsIntSize size, | |
| 72 uint32_t flags, GdkColormap* colormap); | |
| 73 #endif | |
| 74 | |
| 75 private: | |
| 76 #ifdef MOZ_X11 | |
| 77 // for gfxXlibNativeRenderer: | |
| 78 virtual nsresult DrawWithXlib(cairo_surface_t* surface, | |
| 79 nsIntPoint offset, | |
| 80 nsIntRect* clipRects, uint32_t numClipRects) MOZ_OVERRIDE; | |
| 81 | |
| 82 #if (MOZ_WIDGET_GTK == 2) | |
| 83 GdkColormap *mColormap; | |
| 84 #endif | |
| 85 #endif | |
| 86 }; | |
| 87 | |
| 88 #endif /*GFXGDKNATIVERENDER_H_*/ |
